Amazon.com description: Product Description: "Standard Catalog of" Firearms is a uniquely valuable resource. Hobbyists, dealers, shooters, hunters and private collectors have all come to rely on it for pricing and identification. Readers can use it to identify antique, collectible, vintage and modern firearms, refer to it for completely updated pricing and read it for collecting tips and techniques. It includes over 25,000 model listings that will allow readers to buy and sell all types of firearms with confidence. Also included in this edition is a CD of the book's entire text for computer usage. The 20th anniversary edition also contains 'sleeper alerts' to inform buyers of potential collectibles. For gun enthusiasts, there simply is no better guide available.